From what I have found through research is that Impedence is quite a big issue when it comes to communication speed and minimising reflections, is this correct?
Because the databus will be used for an industrial application I have been looking at some DeviceNet specifications which say that I...
I am looking at setting up a 1Mb/s CAN databus for an industrial application. Distance between the nodes on the bus will range between 10cm to 10m.
What are the main things to look out for when choosing a cable for a CAN bus?
The distance between the nodes will vary from directly adjacent to...
Look into IEC 61499 more and more PLC manufacturers will be moving towards using this standartd, knowing about it will therefore be a valuable skill in a few years
Thanks for the info and quick responses,
That is indeed what we are looking at, but it is always good to look at past successes and failures to see what to do or what not to do.
And the potential to be able to make our product compatible with others might possibly make it worth it to use older...
Oh and since it is just research at the moment, the budget isn't very high so free information would be preferred.
If the possibility of making our modules compatible with other PLCs does come up however we might rethink the budget and look at the likes of some of those third party schemes...
Thanks a lot for the information.
My company is developing a PLC and I am doing some research for the backplane.
We are looking at using a serial bus so that the PLC and I/O can be arranged in a rack format, but also in a more spaced out format (more for ease of installation in tight spaces than...
I am carrying out some research into PLC backplanes for a new product my company is developing.
I am looking for information on the types of communications busses and communications protocols used in PLC rack backplanes for communication between the CPU and the various I/O cards.
Can anyone help...
